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Finding the Fourth Proportional to 49,771.56, 74,614.56 and 21,670.20

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Solution

The fourth proportional to 49,771.56, 74,614.56 and 21,670.20 is: 32,486.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,771.56 : 74,614.56 = 21,670.20 : x
  2. Step 2: Convert to fraction form
    49,771.56/74,614.56 = 21,670.20/x
  3. Step 3: Cross multiply
    49,771.56x = 74,614.56 × 21,670.20
  4. Step 4: Simplify right side
    49,771.56x = 1,616,912,438.11
  5. Step 5: Solve for x
    x = 1,616,912,438.11/49,771.56
  6. Step 6: Final answer
    x = 32,486.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.